
For optimal performance of your Levoit Core 300 True HEPA Air Purifier, plan to replace the filters every 6 to 8 months. This timeframe is a general guideline; actual filter life depends on usage and the air quality in your home. The pre-filter can be cleaned every 2 to 4 weeks to extend the life of the other filters. While the pre-filter is washable, the True HEPA and activated carbon filters are not and must be replaced when they're no longer effective. Signs that it's time to replace your filters include increased noise from the unit, reduced airflow, unusual odors, or a visibly dirty filter. To maintain the air purifier's efficiency, it's recommended to use genuine Levoit replacement filters.


